Defines heinous crimes as grievous, odious and hateful offenses, which by reason of their inherent or manifest wickedness, viciousness, atrocity and perversity are repugnant and outrageous to the common standards and norms of decency and morality in a just, civilized and orderly society.Imposes death penalty on unlawful acts defined and penalized under Sections 4, 5, 6, 8, 11, 25, 27, and 29 of RA No. 9165, as amended otherwise known as the "Comprehensive Dangerous Drugs Act of 2002". Amends Article 47 of the Revised Penal Code, as amended which states that death penalty shall not be imposed when the guilty person is below eighteen (18) years of age at the time of the commission of the crime or is more than seventy (70) years of age or upon the automatic review of the case by the Court of Appeals or, where applicable, by the Supreme Court En Banc, the required majority vote is not obtained for the imposition of death penalty.Amends Article 81 of the Revised Penal Code, as amended which provides for the manner of how the death penalty is to be executed: a. hanging; b. firing squad; or c. lethal injection.